<template>
  <view>
      <!-- 轮播图区域 -->
          <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
            <!-- 循环渲染轮播图的 item 项 -->
            <swiper-item v-for="(item, i) in swiperList" :key="i">
              <navigator class="swiper-item"  :url="'/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id">
                <!-- 动态绑定图片的 src 属性 -->
                <image :src="item.image_src"></image>
              </navigator >
            </swiper-item>
          </swiper>
            
      <!-- 分类导航区域 -->
      <view class="nav-list">
         <view class="nav-item" v-for="(item, i) in navList" :key="i" @click="navClickHandler(item)">
           <image :src="item.image_src" class="nav-img"></image>
         </view>
      </view>
      
      <!-- 楼层区域 -->
      <view class="floor-list">
        <view class="floor-item" v-for="(item,i) in floorList" :key="i">
          <image :src="item.floor_title.image_src" class="floor-title"></image>
          <!-- 楼层图片区域 -->
          <view class="floor-img-box">
            <!-- 左侧大图片的盒子 -->
            <navigator class="left-img-box" :url='item.product_list[0].url'>
              <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
            </navigator>
            <!-- 右侧 4 个小图片的盒子 -->
            <view class="right-img-box">
              <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url='item2.url'>
                <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
              </navigator>
            </view>
          </view>
        </view>
      </view>
      
  </view>
</template>

<script>
  export default {
    data() {
      return {
        swiperList:[],
        navList:[],
        floorList: []
      };
    },
    //小程序挂载时
    onLoad(){
      this.getSwiperList(),
      this.getNavList(),
      this.getFloorList()
    },
  //小程序方法
  methods:{
  async getSwiperList(){
     const {data:res}=await uni.$http.get('/api/public/v1/home/swiperdata')
     //console.log(res)
     if(res.meta.status!==200) return uni.$showMsg()
     this.swiperList=res.message  
     //uni.$showMsg('数据请求成功')
    },
   async getNavList() {
      const { data: res } = await uni.$http.get('/api/public/v1/home/catitems')
      if (res.meta.status !== 200) return uni.$showMsg()
      this.navList=res.message
    },
    
   navClickHandler(item){
     //console.log(item);
     if(item.name==='分类'){
       uni.switchTab({
         url:'/pages/cate/cate'
       })
     }
   },
  
  //获取楼层数据
  async getFloorList(){
   const {data:res}=await uni.$http.get('/api/public/v1/home/floordata')
    if(res.meta.status!==200)return uni.$showMsg()
    // 通过双层 forEach 循环，处理 URL 地址 为图片重新分配跳转地址+参数
      res.message.forEach(floor => {
        floor.product_list.forEach(prod => {
          prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
        })
      })
    this.floorList=res.message
  }
  },
  }
</script>

<style lang="scss">
  //轮播图
swiper {
 height: 330rpx;

 .swiper-item,
 image {
   width: 100%;
   height: 100%;
 }
 }
 //ui导航栏
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;

  .nav-img {
    width: 128rpx;
    height: 140rpx;
  }
}
//楼层标题
 .floor-title{
   height: 60rpx;
   width: 100%;
   display: flex;
 }
 //楼层图片样式
.right-img-box{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.floor-img-box{
  display: flex;
  padding-left: 10rpx;
}


</style>
